The Jewish Oral law written in Talmud:

The Babylonian Talmud Bavli consists of documents compiled over the period of Late Antiquity (3rd to 5th centuries). 

During this time the most important of the Jewish centres in Mesopotamia, later known as Iraq, were Nehardea, Nisibis, Mahoza (just to the south of what is now Baghdad), Pumbeditha (near present-day Fallujah), and the Sura Academy.

The Babylonian Talmud records the opinions of the rabbis of Israel as well as of those of Babylonia in their Oral form, while the Jerusalem Talmud only seldom cites the Babylonian rabbis. 

The Babylonian version also contains the opinions of more generations because of its later date of completion. For both these reasons it is regarded as a more comprehensive collection of the opinions available. 

Talmud Bavli (the “Babylonian Talmud”) comprises the Mishnah and the Babylonian Gemara, the latter representing the culmination of more than 300 years of analysis of the Mishnah in the Babylonian Academies. 

The foundations of this process of analysis were laid by Rab, a disciple of Rabbi Judah ha-Nasi. 

Tradition ascribes the compilation of the Babylonian Talmud in its present form to two Babylonian sages, Rav Ashi and Ravina. Rav Ashi was president of the Sura Academy from 375 to 427 CE. 

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